1. Full of tumult; characterized by tumult; disorderly; turbulent. The flight became wild and tumultuous. Macaulay. 2. Conducted with disorder; noisy; confused; boisterous; disorderly; as, a tumultuous assembly or meeting. 3. Agitated, as with conflicting passions; disturbed. His dire attempt, which, nigh the birth Now rolling, boils in his tumultuous breast. Mi...